From c12df73883f626344cee7f3f0497ec75b95f5e1d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= Date: Thu, 15 Feb 2018 18:39:45 +0100 Subject: Add the glyph rendering functions --- c_src/esdl2.h | 3 ++ c_src/sdl_ttf.c | 139 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 142 insertions(+) (limited to 'c_src') diff --git a/c_src/esdl2.h b/c_src/esdl2.h index 60835a7..edb104e 100644 --- a/c_src/esdl2.h +++ b/c_src/esdl2.h @@ -449,6 +449,9 @@ F(ttf_open_font, 2) \ F(ttf_open_font_index, 3) \ F(ttf_quit, 0) \ + F(ttf_render_glyph_blended, 3) \ + F(ttf_render_glyph_shaded, 4) \ + F(ttf_render_glyph_solid, 3) \ F(ttf_render_utf8_blended, 3) \ F(ttf_render_utf8_blended_wrapped, 4) \ F(ttf_render_utf8_shaded, 4) \ diff --git a/c_src/sdl_ttf.c b/c_src/sdl_ttf.c index ccde11c..4f4bed9 100644 --- a/c_src/sdl_ttf.c +++ b/c_src/sdl_ttf.c @@ -475,6 +475,145 @@ NIF_FUNCTION(ttf_quit) return nif_thread_cast(env, thread_ttf_quit, 0); } +// ttf_render_glyph_blended + +NIF_CALL_HANDLER(thread_ttf_render_glyph_blended) +{ + SDL_Surface* surface; + obj_Surface* res; + ERL_NIF_TERM term; + + surface = TTF_RenderGlyph_Blended(args[0], (long)args[1], *(SDL_Color*)args[2]); + + enif_free(args[2]); + + if (!surface) + return sdl_error_tuple(env); + + NIF_RES_TO_PTR_AND_TERM(Surface, surface, res, term); + + return enif_make_tuple2(env, + atom_ok, + term + ); +} + +NIF_FUNCTION(ttf_render_glyph_blended) +{ + void* font_res; + unsigned int ch; + SDL_Color* fg; + + BADARG_IF(!enif_get_resource(env, argv[0], res_Font, &font_res)); + BADARG_IF(!enif_get_uint(env, argv[1], &ch)); + + fg = enif_alloc(sizeof(SDL_Color)); + if (!map_to_color(env, argv[2], fg)) { + enif_free(fg); + + return enif_make_badarg(env); + } + + return nif_thread_call(env, thread_ttf_render_glyph_blended, 3, + NIF_RES_GET(Font, font_res), ch, fg); +} + +// ttf_render_glyph_shaded + +NIF_CALL_HANDLER(thread_ttf_render_glyph_shaded) +{ + SDL_Surface* surface; + obj_Surface* res; + ERL_NIF_TERM term; + + surface = TTF_RenderGlyph_Shaded(args[0], (long)args[1], + *(SDL_Color*)args[2], *(SDL_Color*)args[3]); + + enif_free(args[2]); + enif_free(args[3]); + + if (!surface) + return sdl_error_tuple(env); + + NIF_RES_TO_PTR_AND_TERM(Surface, surface, res, term); + + return enif_make_tuple2(env, + atom_ok, + term + ); +} + +NIF_FUNCTION(ttf_render_glyph_shaded) +{ + void* font_res; + unsigned int ch; + SDL_Color *fg, *bg; + + BADARG_IF(!enif_get_resource(env, argv[0], res_Font, &font_res)); + BADARG_IF(!enif_get_uint(env, argv[1], &ch)); + + fg = enif_alloc(sizeof(SDL_Color)); + if (!map_to_color(env, argv[2], fg)) { + enif_free(fg); + + return enif_make_badarg(env); + } + + bg = enif_alloc(sizeof(SDL_Color)); + if (!map_to_color(env, argv[3], bg)) { + enif_free(fg); + enif_free(bg); + + return enif_make_badarg(env); + } + + return nif_thread_call(env, thread_ttf_render_glyph_shaded, 4, + NIF_RES_GET(Font, font_res), ch, fg, bg); +} + +// ttf_render_glyph_solid + +NIF_CALL_HANDLER(thread_ttf_render_glyph_solid) +{ + SDL_Surface* surface; + obj_Surface* res; + ERL_NIF_TERM term; + + surface = TTF_RenderGlyph_Solid(args[0], (long)args[1], *(SDL_Color*)args[2]); + + enif_free(args[2]); + + if (!surface) + return sdl_error_tuple(env); + + NIF_RES_TO_PTR_AND_TERM(Surface, surface, res, term); + + return enif_make_tuple2(env, + atom_ok, + term + ); +} + +NIF_FUNCTION(ttf_render_glyph_solid) +{ + void* font_res; + unsigned int ch; + SDL_Color* fg; + + BADARG_IF(!enif_get_resource(env, argv[0], res_Font, &font_res)); + BADARG_IF(!enif_get_uint(env, argv[1], &ch)); + + fg = enif_alloc(sizeof(SDL_Color)); + if (!map_to_color(env, argv[2], fg)) { + enif_free(fg); + + return enif_make_badarg(env); + } + + return nif_thread_call(env, thread_ttf_render_glyph_solid, 3, + NIF_RES_GET(Font, font_res), ch, fg); +} + // ttf_render_utf8_blended NIF_CALL_HANDLER(thread_ttf_render_utf8_blended) -- cgit v1.2.3